Detecting functional hubs of ictogenic networks.

abstract：:Reaction time (RT), the most common measure of CNS efficiency, shows intra- and inter-individual variability. This may be accounted for by hemispheric specialization, individual neuroanatomy, and transient functional fluctuations between trials. To explore RT on these three levels, ERPs were measured in a visual 4-cho...

journal_title：Brain topography

authors： Antonova I,van Swam C,Hubl D,Dierks T,Griskova-Bulanova I,Koenig T

更新日期：2016-07-01 00:00:00

abstract：:The neural correlate of anterograde amnesia in Wernicke-Korsakoff syndrome (WKS) is still debated. While the capacity to learn new information has been associated with integrity of the medial temporal lobe (MTL), previous studies indicated that the WKS is associated with diencephalic lesions, mainly in the mammillary ...

journal_title：Brain topography

authors： Nahum L,Pignat JM,Bouzerda-Wahlen A,Gabriel D,Liverani MC,Lazeyras F,Ptak R,Richiardi J,Haller S,Thorens G,Zullino DF,Guggisberg AG,Schnider A

更新日期：2015-09-01 00:00:00

abstract：:Ten right-handed students were submitted to a protocol of cognitive visual stimulations based on six successive sequences: EC1, EO, B1, B2, B3, EC2. Following a first "eyes closed" (EC1) multiple EEG recording (16 EEG leads, plus polygraphy), and an "eyes-open" recording (EO) with central visual fixation, 60 computer-...

journal_title：Brain topography

authors： Etévenon P,Eustache F,Mitermite F,Lepaisant J,Lechevalier B,Zarifian E

更新日期：1990-10-01 00:00:00

abstract：:A visual three-stimulus (target, nontarget, standard) paradigm was employed in which subjects responded only to the target. Nontarget stimulus properties were varied systematically to evaluate how stimulus typicality (non-novel vs. novel) across task discrimination (easy vs. difficult) conditions affects P3a scalp top...

journal_title：Brain topography

authors： Polich J,Comerchero MD

更新日期：2003-04-01 00:00:00

abstract：:In elderly patients presenting to an ambulatory practice with complaints of cognitive disturbance, early dementia must be differentiated from depression. The present paper describes the application of standard electroencephalography and evoked potential testing (EEG/EP) and computerized electroencephalography with evo...

journal_title：Brain topography

authors： Jordan SE,Nowacki R,Nuwer M

更新日期：1989-07-01 00:00:00

abstract：:A single flash accompanied by two auditory beeps tends to be perceived as two flashes (Shams et al. Nature 408:788, 2000, Cogn Brain Res 14:147-152, 2002). This phenomenon is known as 'sound-induced flash illusion.' Previous neuroimaging studies have shown that this illusion is correlated with modulation of activity i...

journal_title：Brain topography

authors： Rosenthal O,Shimojo S,Shams L

更新日期：2009-05-01 00:00:00

abstract：:Topographical analysis of cerebral electrical activity was performed in 44 patients with hepatic encephalopathy. These patients were classified in 5 groups according to clinical criteria. Eight healthy subjects were used as a control group. All were studied in an awake, eyes closed, condition and some [Control Group (...

journal_title：Brain topography

authors： Sagalés T,Gimeno V,de la Calzada MD,Casellas F,Dolors Macià M,Villar Soriano M

更新日期：1990-04-01 00:00:00

abstract：:Electrical dipoles oriented perpendicular to the cortical surface are the primary source of the scalp EEGs and MEGs. Thus, in particular, gyri and sulci structures on the cortical surface have a definite possibility to influence the EEGs and MEGs. This was examined by comparing the spatial power spectral density (PSD)...

journal_title：Brain topography

authors： Ramon C,Freeman WJ,Holmes M,Ishimaru A,Haueisen J,Schimpf PH,Rezvanian E

更新日期：2009-11-01 00:00:00

abstract：:Event related potentials (ERPs) to an auditory odd-ball paradigm were recorded with the linked earlobe reference (LER) and with a computer calculated average reference (AR), excluding the two linked earlobe derivations. The study was performed in 30 patients with lesions of frontal, parietal, occipital cortex, unilate...

journal_title：Brain topography

authors： Onofrj M,Fulgente T,Malatesta G,Locatelli T

更新日期：1994-07-01 00:00:00

abstract：:Advanced functional neuroimaging approaches dealing with motor imagery have disclosed covert cognitive processes in patients with disorders of consciousness (DoC). However, motor impairment and cognitive-motor dissociation can bias such approaches. Fourteen patients with post-traumatic DoC and ten healthy controls (HC...

journal_title：Brain topography

authors： Naro A,Calabrò RS,Leo A,Russo M,Milardi D,Cannavò A,Manuli A,Buda A,Casella C,Bramanti P,Cacciola A,Bramanti A

更新日期：2018-07-01 00:00:00

abstract：:Neural activity within the human brain produces electrical potentials that are transmitted through the various tissues of the head to the scalp. A three-dimensional finite difference model has been applied to simulate this process and used as the basis for an inverse model, wherein known potentials on the scalp are us...

journal_title：Brain topography

authors： Teubner MD,Nixon JB,Rasser PE,Bottema MJ,Clark CR

更新日期：2005-07-01 00:00:00

abstract：:With its millisecond temporal resolution, Magnetoencephalography (MEG) is well suited for real-time monitoring of brain activity. Real-time feedback allows the adaption of the experiment to the subject's reaction and increases time efficiency by shortening acquisition and off-line analysis. Two formidable challenges e...

journal_title：Brain topography

authors： Dinh C,Strohmeier D,Luessi M,Güllmar D,Baumgarten D,Haueisen J,Hämäläinen MS

更新日期：2015-11-01 00:00:00

abstract：:Fibromyalgia (FM) is a chronic syndrome involving widespread pain of unclear pathophysiology. FM patients frequently complain about cognitive symptoms that interfere with their daily life activities. Several studies have reported attentional deficits and working memory impairment in FM patients. Nevertheless, the mech...

journal_title：Brain topography

authors： González-Villar AJ,Pidal-Miranda M,Arias M,Rodríguez-Salgado D,Carrillo-de-la-Peña MT

更新日期：2017-07-01 00:00:00

abstract：:Detecting and discriminating subtle and rapid sound changes in the speech environment is a fundamental prerequisite of language processing, and deficits in this ability have frequently been observed in individuals with language-learning impairments (LLI). One approach to studying associations between dysfunctional aud...

journal_title：Brain topography

authors： Heim S,Choudhury N,Benasich AA

更新日期：2016-05-01 00:00:00

abstract：:Multiresolution analysis is a potentially useful tool to enhance the brain's electrical fields (spatial distributions of event-related potentials (ERP)), and to bring out spatial features which may not be seen in the fields before enhancement. For comparing different images (slices from ERP of different subjects or fr...

journal_title：Brain topography

authors： Wang K,Begleiter H,Porjesz B

更新日期：1998-04-01 00:00:00

abstract：:Previous studies showed that distinct components of higher cognitive processes like memorizing of words could be correlated with changes in different frequency bands of the human EEG. This study was designed in order to find out if 1) some frequency bands show power and coherence changes only due to the modality of pr...

journal_title：Brain topography

authors： Weiss S,Rappelsberger P

更新日期：1998-10-01 00:00:00

abstract：:In Autism Spectrum Disorders (ASD), impaired response inhibition and lack of adaptation are hypothesized to underlie core ASD symptoms, such as social communication and repetitive, stereotyped behavior. Thus, the aim of the present study was to compare neural correlates of inhibition, post-error adaptation, and reacti...

journal_title：Brain topography

authors： Moliadze V,Brodski-Guerniero A,Schuetz M,Siemann J,Lyzhko E,Schlitt S,Kitzerow J,Langer A,Kaiser J,Naumer MJ,Wibral M,Chan J,Freitag CM,Siniatchkin M

更新日期：2020-05-01 00:00:00

abstract：:Electroconvulsive therapy (ECT) has significant short-term antidepressant effects on drug-resistant patients with severe major depression. Animal studies have demonstrated that electroconvulsive seizures produce potentiation-like synaptic remodeling in both sub-cortical and frontal cortical circuits. However, the elec...

journal_title：Brain topography

authors： Casarotto S,Canali P,Rosanova M,Pigorini A,Fecchio M,Mariotti M,Lucca A,Colombo C,Benedetti F,Massimini M

更新日期：2013-04-01 00:00:00

abstract：:The neurobiological basis and temporal dynamics of communicative language processing pose important yet unresolved questions. It has previously been suggested that comprehension of the communicative function of an utterance, i.e. the so-called speech act, is supported by an ensemble of neural networks, comprising lexi...

journal_title：Brain topography

authors： Egorova N,Pulvermüller F,Shtyrov Y

更新日期：2014-05-01 00:00:00

abstract：:Cognitive performance in attention-deficit/hyperactivity disorder (ADHD) is characterised, in part, by frequent fluctuations in response speed, resulting in high reaction time variability (RTV). RTV captures a large proportion of the genetic risk in ADHD but, importantly, is malleable, improving significantly in a fas...

journal_title：Brain topography

authors： Cheung CHM,McLoughlin G,Brandeis D,Banaschewski T,Asherson P,Kuntsi J

更新日期：2017-05-01 00:00:00

abstract：:Spatial principal components analysis (SPCA) applied to the ongoing EEG yields factor loadings which, when mapped, consistently reveal symmetrical patterns resembling the spherical harmonics. In this paper, we consider the mechanisms responsible for these characteristic patterns. In doing so, we demonstrate that volum...

journal_title：Brain topography

authors： Silberstein RB,Cadusch PJ

更新日期：1992-07-01 00:00:00

abstract：:Spontaneous EEG signal can be parsed into sub-second periods of stable functional states (microstates) that assumingly correspond to brief large scale synchronization events. In schizophrenia, a specific class of microstate (class "D") has been found to be shorter than in healthy controls and to be correlated with pos...

journal_title：Brain topography

authors： Diaz Hernandez L,Rieger K,Baenninger A,Brandeis D,Koenig T

更新日期：2016-03-01 00:00:00

abstract：:The rationale for the present study was to investigate several aspects of P300 topography in relation to aging and neuropsychological measures. We administered an auditory oddball ERP task to 72 participants aged 21.8 to 94.7 years, 36 males and 36 females, in addition to the Wechsler Abbreviated Scales of Intelligenc...

journal_title：Brain topography

authors： Fjell AM,Walhovd KB

更新日期：2001-10-01 00:00:00

abstract：:In 148 patients with focal cerebral lesions the findings of EEG mapping, routine EEG and CT were compared. Regarding etiology 43 patients suffered from completed stroke (CS), 43 patients from transient ischemic attack (TIA), 33 patients had an intracerebral hemorrhage (ICH) and 29 an hemispheric tumor. In 37 patients ...

journal_title：Brain topography

authors： Logar C,Boswell M

更新日期：1991-07-01 00:00:00

abstract：:Multisensory processes include the capacity to combine information from the different senses, often improving stimulus representations and behavior. The extent to which multisensory processes are an innate capacity or instead require experience with environmental stimuli remains debated. We addressed this knowledge ga...

journal_title：Brain topography

authors： Maitre NL,Key AP,Slaughter JC,Yoder PJ,Neel ML,Richard C,Wallace MT,Murray MM

更新日期：2020-09-01 00:00:00

abstract：:This paper describes a set of proposed standardized quantitative descriptors of event-related potentials, based upon principal component varimax analysis (PCVA). No claim is made that these mathematical descriptors correspond to discrete neurophysiological processes which generate the ERP. However, adoption and prospe...

journal_title：Brain topography

authors： John ER,Easton P,Prichep LS,Friedman J

更新日期：1993-01-01 00:00:00

abstract：:Motion artifacts are a well-known and frequent limitation during neuroimaging workup of cognitive decline. While head motion typically deteriorates image quality, we test the hypothesis that head motion differs systematically between healthy controls (HC), amnestic mild cognitive impairment (aMCI) and Alzheimer diseas...

journal_title：Brain topography

authors： Haller S,Monsch AU,Richiardi J,Barkhof F,Kressig RW,Radue EW

更新日期：2014-11-01 00:00:00

abstract：:Functional near-infrared spectroscopy (fNIRS) has been proven reliable for investigation of low-level visual processing in both infants and adults. Similar investigation of fundamental auditory processes with fNIRS, however, remains only partially complete. Here we employed a systematic three-level validation approach...

journal_title：Brain topography

authors： Chen LC,Sandmann P,Thorne JD,Herrmann CS,Debener S

更新日期：2015-09-01 00:00:00

abstract：:The aim of this work was to use probabilistic diffusion tractography to examine the organization of the human insular cortex based on the similarities of its remote projections. Forty right-handed healthy subjects (33.8 ± 12.7 years old) with no history of neurological injury were included in the study. After the spat...

journal_title：Brain topography

authors： Jakab A,Molnár PP,Bogner P,Béres M,Berényi EL

更新日期：2012-07-01 00:00:00

abstract：:Tourette syndrome (TS) is a neuropsychiatric disorder with childhood onset characterized by chronic motor and vocal tics; however, the current diagnosis of TS patients is subjective, as it is mainly assessed based on the parents' description alongside specific evaluations. The early and accurate diagnosis of TS based ...

journal_title：Brain topography

authors： Duan K,Wu Q,Liao Y,Si Y,Bore JC,Li F,Tao Q,Lin L,Lei W,Hu X,Yao D,Pei C,Zhang T,Huang L,Xu P

更新日期：2021-01-01 00:00:00